Add new vpl_num_allocated_pages member to VPageListData.

tatsuo-ishii · tatsuo-ishii · commit 770d0786c242 · 1999-08-25T12:18:31.000Z
It will keep track the number of pages allocated so that
vacuum could allocate twice of the previous allocation.
This will greatly reduce the total memory consumption of
vacuum.
diff --git a/src/include/commands/vacuum.h b/src/include/commands/vacuum.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: vacuum.h,v 1.23 1999/08/01 04:54:25 tgl Exp $
+ * $Id: vacuum.h,v 1.24 1999/08/25 12:18:31 ishii Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -46,6 +46,7 @@ typedef struct VPageListData
 {
 	int			vpl_empty_end_pages;	/* Number of "empty" end-pages */
 	int			vpl_num_pages;	/* Number of pages in vpl_pagedesc */
+	int			vpl_num_allocated_pages;	/* Number of allocated pages in vpl_pagedesc */
 	VPageDescr *vpl_pagedesc;	/* Descriptions of pages */
 } VPageListData;
 

Original file line number	Diff line number	Diff line change
`@@ -6,7 +6,7 @@`
`6`	`6`	`*`
`7`	`7`	`* Copyright (c) 1994, Regents of the University of California`
`8`	`8`	`*`
`9`		`- * $Id: vacuum.h,v 1.23 1999/08/01 04:54:25 tgl Exp $`
	`9`	`+ * $Id: vacuum.h,v 1.24 1999/08/25 12:18:31 ishii Exp $`
`10`	`10`	`*`
`11`	`11`	`*-------------------------------------------------------------------------`
`12`	`12`	`*/`
`@@ -46,6 +46,7 @@ typedef struct VPageListData`
`46`	`46`	`{`
`47`	`47`	`int vpl_empty_end_pages; /* Number of "empty" end-pages */`
`48`	`48`	`int vpl_num_pages; /* Number of pages in vpl_pagedesc */`
	`49`	`+ int vpl_num_allocated_pages; /* Number of allocated pages in vpl_pagedesc */`
`49`	`50`	`VPageDescr vpl_pagedesc; / Descriptions of pages */`
`50`	`51`	`} VPageListData;`
`51`	`52`